Earth observation NISAR satellite will be launched on July 30, says ISRO chairman

The unique Earth observation satellite NASA-ISRO Synthetic Aperture Radar (NISAR) will be launched through the GSLV-S16 on July 30, said ISRO chairman V Narayanan. Weighing 2,392 kg, NISAR is a unique Earth observation satellite and the first to observe the Earth with a dual-frequency Synthetic Aperture Radar (NASA’s L-band and ISRO’s S-band) both using NASA’s … Read more

Deep-brain stimulation: nudging neurons – The Hindu

The vagus nerve can be stimulated to manage epilepsy. | Photo Credit: Manu5 (CC BY-SA) Deep-brain stimulation (DBS) is a medical technique where doctors implant electrodes deep inside specific areas of the brain to treat certain disorders. These electrodes are connected by wires to a small device, similar to a heart’s pacemaker, which is usually … Read more

The tale of the tigers

Where it all began… Did you know that a rough conservative estimate of India’s tiger population at the start of the 20the Century was around 40,000? The top end of the estimates even placed the number of tigers in the Indian subcontinent in 1900 at around 1,00,000!  That number, however, nosedived to a mere 1,827 … Read more

The virtues of the tomato, a healthy vegetable

Crates of tomatoes lined up at the Rayakottai mandi in Krishnagiri, Tamil Nadu. | Photo Credit: N. Bashkaran/The Hindu The evolution and growth of the humble tomato as an essential ingredient of our daily diet across the world is a fascinating story. Yolanda Evans writes in the June 5, 2025, issue of National Geographic magazine … Read more